Vagus Nerve Stimulation
Pronunciation: VAY-gus
Also written as: VNS — Vagus Nerve Stimulation
Therapeutic technique using electrical impulses to stimulate the vagus nerve for treating epilepsy and depression.
Full Definition
Vagus Nerve Stimulation (VNS) is a neuromodulation therapy that involves implanting a device similar to a pacemaker that sends regular electrical pulses to the vagus nerve through a lead wire implanted under the skin. Originally developed for treatment-resistant epilepsy, VNS has also been approved for treatment-resistant depression. The vagus nerve connects the brain to major organs throughout the body, and stimulation can influence neurotransmitter levels and neural activity patterns associated with mood and seizure control.
Usage
Usage note: Vagus should not be confused with 'vague' in clinical documentation.
In Context
- "Vagus nerve stimulation showed efficacy in reducing seizure frequency by 50% in the treatment-resistant epilepsy cohort." — Clinical trial results
- "The vagus nerve stimulation device requires regular battery replacement approximately every 5-10 years." — Patient education material